Edit a button
We can edit the attributes of an existing button by clicking on its name in the Buttons section. All the attributes we set when we first create the button are open for us to edit. However, the Edit Page Buttons page includes a new section called Database Manipulation Request, which can be seen in the following screenshot:
This section allows us to associate the button with a specific database DML action at the Page Processing phase regardless of its name or REQUEST
value, which we'll discuss next.
If we associate a button with a database action, pressing the button will trigger this action as part of the Page Processing phase. We will return to this option in Chapter 9, when we discuss the Processes options that APEX provides us.